Effect of prenylated flavonoids and chalcones isolated from Artocarpus species on platelet aggregation in human whole blood
作者:Ibrahim Jantan、Yusyila H. Mohd Yasin、Shajarahtunnur Jamil、Hasnah Sirat、Norazah Basar
DOI:10.1007/s11418-010-0410-0
日期:2010.7
Five prenylflavonoids and two prenylchalcones from Artocarpus lowii King, A. scortechinii King and A. teysmanii Miq., and acetylated derivatives of cycloheterophyllin and artonin E were investigated for their ability to inhibit arachidonic acid (AA), collagen and adenosine diphosphate (ADP)-induced platelet aggregation in human whole blood by using an electrical impedance method. Among the tested compounds, only cycloheterophyllin inhibited AA-induced platelet aggregation with an IC50 value of 100.9 μM. It also showed strong inhibition against ADP-induced aggregation, with an IC50 value of 57.1 μM. Isobavachalcone, 2′,4′-dihydroxy-4-methoxy-3′-prenyldihydrochalcone, cycloartobiloxanthone, artonin E and artonin E triacetate showed selective inhibition against ADP-induced aggregation, with IC50 values ranging from 55.3 to 192.0 μM, but did not show such effect against other inducers.
采用电阻抗法研究了从Artocarpus lowii King、A. scortechinii King和A. teysmanii Miq.中提取的5种前酰黄酮类化合物和2种前酰查尔酮类化合物,以及环茶碱和青蒿素E的乙酰化衍生物对花生四烯酸(AA)、胶原蛋白和二磷酸腺苷(ADP)诱导的人全血血小板聚集的抑制能力。在测试的化合物中,只有环茶碱能抑制 AA 诱导的血小板聚集,其 IC50 值为 100.9 μM。它对 ADP 诱导的血小板聚集也有很强的抑制作用,IC50 值为 57.1 μM。异巴夏尔酮、2′,4′-二羟基-4-甲氧基-3′-异戊烯基二氢查尔酮、环木菠萝蒽酮、青蒿素 E 和青蒿素 E 三乙酸酯对 ADP 诱导的聚集有选择性抑制作用,IC50 值为 55.3 至 192.0 μM,但对其他诱导剂没有抑制作用。